End-raising platform-canvas.



J. E. BROWN. END RAISING PLATFORM CANVAS. APPLI'UATION FILED smmzz,191s.

Patented Jan. 5, 19.15.

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MORRIS PETERS Co.. PHOTO-urna, wAsHlNcroN, n. r

tained, as hereinafter more `pointed out in my claims and illustrated 1nthe accompanying drawings, in which:

., any kind.

inra saura JOHN EMORY BROWN, OF MITCHELLVILLE, IOWA..

END-Raisins PLATFORM-canvas.

inaasaa Application filed September 22, 1913.

To all whom imag concern:

Be it known that I, JOHN E. BROWN, a citizen of the United States, andresident of Mitchellville, in the county of Polk and State of Iowa, haveinvented a certain new and useful End-Raising Platform-Canvas, vof whichthe following is a specification.

The object of my invention is to provide an end raising platform canvasof simple, durable and inexpensive construction.

More particularly it is my object to provide a device of the kindmentioned, having a conveyer frame, one end of which is fixed and theother end of which is hinged yto the fixed or permanent portion topermit `the hinged end of the conveyer frame, to vgether with the rollerat said end and the traveling canvas or the like toy be tilted upwardlyto give access to the platform beneath the conveyer for removing debrisof Still a further object is to provide in such la device simple meansfor hinging one end of the conveyer to the other and at the same `timefor providing adjustable tension pro- ,ducing means.

Still a further object is to provide in such a device simple means forlocking the movable end of the conveyer frame in its position for use.

My invention consists in certain details, in

the construction, combination and arrangement of the various parts ofthe device, whereby the objects contemplated `are atfully set forth,

Figure 1 shows a plan view of an end raising platform canvas, embodyingmy invention. Fig. 2 shows a vertical, longitudinal, sectional viewthrough my improved device, the canvas and the slats thereon not beingshown in section. Fig. 3 shows a longitudinal, sectional view throughthe hinge f and thetension device. Fig. 4 shows an end view, partly insection, of my device, part of the endless conveyerbeing cutaway.

Specication of Letters Patent.

resented aan.. 5, rais.

Serial No. 791,224.

Fig. 5 shows a detail view of one of the locking hooks, and Fig. 6 showsa detail view of the other locking hook.

My device is particularly designed foruse with a binder, and in theaccompanying drawings I have used the reference numeral 10 to indicategenerally the frame of a vbinder which is supported at its outer endupon the wheel 11. Mounted on the frame is a platform 12, below theendless conveyer, j

upon which the grain drops after it is cut. Mounted in brackets 13at oneend of the platform 12 is a shaft 14, on which is a roller 15. Adjacentto the roller 15 is an elevator 16. For supporting the roller at theother end of the endless conveyer I have provided fixed longitudinalconveyer frame members or arms 17 at the sides of the conveyer, parallelto each other, and also adjustable means which will now be described.

At the end of the conveyer, opposite the roller 15, is a shaft 18,parallel with the shaft 14, on which is a roller 19. A flexible conveyer20, which may be'of canvas on which are slats 21, is mounted ontherollers 15 and 19. Fixed to the outer ends of each of the arms 17 isa short arm 22 to which is pivoted another arm 23, substantially inalinement with the arm 22. The end of each arm 23 is received in acylinder 24:

which is provided with longitudinal slots 25 on opposite sides. A boltor pin 26a is extendedV through each arm 23 and through the slots 25 ofthe cylinder 24C. Screwed into the end of the cylinder 24: is a member26.

in which the ends of the shaft 18 are journaled. The cylinder 24- isprovided near the member 26 with a plurality of openings 27 arranged inpairs which register with each other on opposite sides of the cylinder24:.

Selectively received in one pair of openings i 27 is a bolt 28. Receivedwithin the cylinder 24, between the bolt 28 and the end of the arm 28 isa powerful extensible coil spring 29 designed to hold the rollers 19 and15 apart and to provide tension for` stretching the flexible conveyer20. The tension of the springv29 may be variedby varying the, po

sition of the bolt 28 by mounting it in difl'erent pairs of holes 27. Inthe upper outer end of each member 26 is a notch 30.

It will be seen that the outer end of the frame for connecting therollers, formed by the members hereinbefore described, is hinged to thefixed arm 17 so that the roller 19 in the outer end of the conveyer maybe tilted upwardly away from the platform 12. The ends of the shaft 18rest on the upper surfaces 31 of the brackets 32. The ends of themembers 26 project longitudinally beyond the brackets 32. For lockingsaid ends downwardly in posi-tion with the ends of the shafts 18 on thesurfaces 31, I have secured to themain frame pivoted hook devices 33having formed on their free ends hook members 34 provided with notches35 of sufficient depth tol allow some play of the member 26 in the notch35. The hook members 33 are fixed on the transverse rod 36, which isrotatably mounted in brackets 37 and extends across the end of themachine so'that the hook members 34 may be operated in unison by meansof a right angled extension formed on one end of the said rod 36, asshown in Fig. 1.

In the practical operation of my improved device, the parts areassembled with the ends of the shaft 18 resting in grooves 31 of thebrackets 32. The hook members 33 are moved to proper position forengaging the ends of the members 26. When the machine is operated, itwill be seen that the springs 29 will yieldingly hold the rollers 19 and15 away from each other while the hook members 33 will prevent the shaft18, within the roller 19, from jumping out of the grooves 31. y

A common difficulty experienced with ordinary binder conveyers is thecollection of corn stalks and the like on the platform 12 beneath theconveyer. 1V hen corn stalks become bunched at the outer end of theconveyer' and finally are frictionally engaged by the slats until themovement of the conveyer is stopped, it is a tedious operation to removethe stalks. vWith my device, the hook members 34: may be moved away fromenga gement with the member 26 and the roller 19 in the outer end of thevconveyer may be readilylifted upwardly on the hinged point between themembers 22 and 24, for removing the stalks or other debris. After thestalks have been removed, the outer end of the conveyer maybe quicklyand readily locked in place. The tension of the spring 29 may bereadilyvvaried by changing the position of the bolts 28 in the cylinder24.

The advantages of my improved device are obvious from the foregoingdescription. By the construction hereinbefore shown, 'the operator isenabled to quickly and easily raise the outer end of the conveyer forremoving any material that may gather bcneath the canvas.

It will be understood that various changes may be made in the details ofthe construction of my device, particularly in the method of hinging theparts together, the tension device and the means for locking the shaft18 in position for use, and it is my intention to cover by thisapplication and the patent to be issued thereon any such changes whichmay be included within the scope of the following claims.

I claim as my invention:

1. In a device of the class described, a frame including a platform, aroller rotatably mounted on the frame, a second roller spaced from thefirst roller, a flexible conveyer mounted on said rollers above theplatform, a hinged two-part arm connecting each end of the second rollerwith the respective ends of the first roller to permit the second rollerand the parts of said arms connected therewith to be raised away fromsaid platform, and means for detachably securing said second roller tothe frame.

2. In a device of the class described, a frame including a platform, aroller rotatably mounted on the frame, a second roller spaced from thefirst roller, a iiexible conveyer mounted on said rollers above theplatform, a hinged two-part arm connecting each end of the second rollerwith the respective ends of the first roller to permit the second rollerand the parts of said arms connected therewith to be raised away fromsaid platform, and means for detachably securing said second roller tothe frame, the parts of each of said arms being also slidably connected.i

3. In a device of the class described, a frame including a platform, aroller rotatably mounted on the frame, a second roller spaced from thefirst roller, a flexible conveyer mounted on said rollers above theplatform, a hinged two-part arln connecting each end of the secondroller with the respective ends of the first roller to permit the secondroller and the parts of said arms connected therewith to be raised awayfrom said platform, means for detachably securing said second roller tothe frame, the parts of each of said arms being also s lidablyconnected, and yielding means for holding the parts of each of said armsat one limit of their sliding movement with relation to each other.

4. Inka device of the class described, a frame including a platform, aroller rotatably mounted on the frame, a ,second roller spaced from thefirst roller, a flexible conveyer mounted on said rollers above theplatform, a hinged two-part arm connecting each end of the second rollerWith the yieldingly holding the arts of each arm at 10 respective endsof the first roller to permit one limit of their sli ing movement withthe second roller and the parts of said arms relation to each other. iconieoted therewih to be 'aisd avflay lfrom Des Moines, Iowa, August 28,1913.

sai p1atorm,an means or etac aby securing said second roller to theframe, to JOHN EMORY BROWN' permit it to slide toward or from said rstWitnesses:

roller, means for slidably connecting the L. E. JOHNS,

parts oi each of said arms, and means for A. A. JONES.

Copier of thl patent may be obtmmedl for ve nente each, ty nddressiumthe Commisiuner of Patente,

Wnmhmmom, D.

